{"id":309,"date":"2026-04-16T09:25:23","date_gmt":"2026-04-16T01:25:23","guid":{"rendered":"https:\/\/juyunrui.com\/?post_type=product&p=309"},"modified":"2026-04-16T16:47:42","modified_gmt":"2026-04-16T08:47:42","slug":"12-9%e7%ba%a7%e5%8f%91%e9%bb%91%e6%b3%95%e5%85%b0%e8%9e%ba%e6%a0%93","status":"publish","type":"product","link":"https:\/\/juyunrui.com\/index.php\/product\/12-9%e7%ba%a7%e5%8f%91%e9%bb%91%e6%b3%95%e5%85%b0%e8%9e%ba%e6%a0%93\/","title":{"rendered":"12.9\u7ea7\u53d1\u9ed1\u6cd5\u5170\u87ba\u6813"},"content":{"rendered":"

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1.\u00a0Ultra-High Strength Grade: Strictly meets Grade 12.9 international standards, with tensile strength \u22651200MPa and yield strength \u22651080MPa, far exceeding ordinary Grade 8.8 bolts. It can withstand extreme heavy loads, making it the core selection for key connections such as automobile chassis and construction machinery.<\/p>\n

2.\u00a0Professional Black Oxide Protection: Adopts high-temperature oxidation blackening process to form a dense and wear-resistant protective film, effectively isolating moisture and corrosion, improving rust and corrosion resistance, and suitable for complex working conditions such as outdoor and industrial humid environments.<\/p>\n

3.\u00a0Integrated Flange Design: Equipped with an integrated flange disc, there is no need to match additional flat washers. It can increase the stress area and disperse pressure, not only improving installation efficiency but also enhancing anti-loosening and seismic performance, adapting to severe vibration environments.<\/p>\n

4.\u00a0Full-Process Quality Control: Juyunrui Fasteners has been deeply engaged in the fastener field for 20 years. We independently control the whole process from high-quality alloy structural steel raw material procurement to cold heading forming, quenching and tempering heat treatment, and blackening treatment. Certified by ISO9001 quality management system, each batch of products is attached with material inspection reports, and quality is traceable.<\/p>\n

5.\u00a0Customized Services: Conventional specifications cover the full series of M6-M30. Length, thread accuracy, and flange size can be customized according to customer drawings\/requirements, supporting OEM\/ODM contract manufacturing, and adapting to small-batch sample testing and large-batch foreign trade order delivery.<\/p>\n","protected":false},"excerpt":{"rendered":"

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\nGrade 12.9 black oxide flange bolts, made of high-quality alloy steel, tensile strength \u22651200MPa, black oxide rust-proof protection + integrated flange (no washer needed), suitable for harsh working conditions of automobiles, construction machinery, etc., support customization and direct foreign trade supply. … <\/p>\n

Continue Reading12.9\u7ea7\u53d1\u9ed1\u6cd5\u5170\u87ba\u6813<\/span><\/a><\/p>\n","protected":false},"featured_media":310,"comment_status":"open","ping_status":"closed","template":"","meta":[],"product_brand":[28],"product_cat":[24],"product_tag":[36],"class_list":{"0":"post-309","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_brand-jyr","7":"product_cat-flange-bolts","8":"product_tag-36","10":"first","11":"instock","12":"shipping-taxable","13":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/juyunrui.com\/index.php\/wp-json\/wp\/v2\/product\/309","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/juyunrui.com\/index.php\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/juyunrui.com\/index.php\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/juyunrui.com\/index.php\/wp-json\/wp\/v2\/comments?post=309"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/juyunrui.com\/index.php\/wp-json\/wp\/v2\/media\/310"}],"wp:attachment":[{"href":"https:\/\/juyunrui.com\/index.php\/wp-json\/wp\/v2\/media?parent=309"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/juyunrui.com\/index.php\/wp-json\/wp\/v2\/product_brand?post=309"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/juyunrui.com\/index.php\/wp-json\/wp\/v2\/product_cat?post=309"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/juyunrui.com\/index.php\/wp-json\/wp\/v2\/product_tag?post=309"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}